[R-390] Resistance Measurements and Trouble Shooting

[David Hallam]

Here is a question from someone who is trying to learn this trouble shooting
business.

After circuit resistance measurements have been made, at what point do you
say that there is a problem and start checking individual components?  Is it
( 5%, ( 10%, (20% of the value stated in the manual, or ?  I realize that
the circuit under consideration makes a difference; some obviously have to
have closer tolerances than others.

The item under consideration is a Hallicrafters HT-32B transmitter.  I don't
think resistances in say the audio circuit would have to be as tight as the
balanced modulator, for instance.  Or am I wrong?

What is a good place to start?

David C. Hallam
KC2JD